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Afifi 2nd > Chapter 5 Medulla > Flashcards

Chapter 5 Medulla Flashcards

1
Q 
Rootlets of the following cranial nerves exit lateral to the olives EXCEPT
A. CN IX
B. CN X
C. CN XI
D. CN XII
A

D. CN XII (p. 79)

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2
Q 
This structure represents the surface marking of the spinal nucleus of CN V
A. Clava
B. Cuneate tubercle
C. Tuberculum cinereum
D. Stria medullaris
A

C. Tuberculum cinereum (p. 80)

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3
Q 
The following structures form the roof of the 4th ventricle EXCEPT
A. Anterior medullary velum
B. Cerebellum
C. Tela choroidea
D. Brachium conjunctivum
A

D. Brachium conjunctivum (p. 80)

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4
Q 
This structure represents the surface landmark of the arcuatocerebellar fibers
A. Tuberculum cinereum
B. Stria medullaris
C. Brachium conjunctivum
D. Restiform body
A

B. Stria medullaris (p. 80)

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5
Q 
This structure connects the cerebellum and the midbrain
A. Tuberculum cinereum
B. Stria medullaris
C. Brachium conjunctivum
D. Restiform body
A

C. Brachium conjunctivum (p. 80)

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6
Q 
This structure connects the cerebellum and the medulla
A. Tuberculum cinereum
B. Stria medullaris
C. Brachium conjunctivum
D. Restiform body
A

D. Restiform body (p. 80)

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7
Q

Which of the following is NOT TRUE about the pyramidal decussation?
A. The left pyramid decussates first in 73% of humans
B. Upper extremity fibers of the corticospinal tract are more medial compared to lower extremity fibers
C. Upper extremity fibers of the CST cross first compared to lower extremity fibers
D. Lower extremity fibers are located more superficially and in close proximity to the odontoid process of C2

A

D. Lower extremity fibers are located more superficially and in close proximity to the odontoid process of C2 (p. 81)

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8
Q 
The spinal trigeminal nucleus extends caudally to the level of:
A. C1
B. C2
C. C3
D. C4
A

C. C3 (p. 83)

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9
Q 
This part of the spinal trigeminal nucleus mediates tactile sensations from the oral mucosa
A. Nucleus oralis
B. Nucleus interpolaris
C. Caudal nucleus
D. All of the above
A

A. Nucleus oralis (p. 83)

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10
Q 
This part of the spinal trigeminal nucleus mediates dental pain
A. Nucleus oralis
B. Nucleus interpolaris
C. Caudal nucleus
D. All of the above
A

B. Nucelus interpolaris (p. 83)

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11
Q 
This part of the spinal trigeminal nucleus, which extends from the obex to the substancia gelatonisa of the spinal cord, mediates pain and temperature from the ipsilateral face
A. Nucleus oralis
B. Nucleus interpolaris
C. Caudal nucleus
D. All of the above
A

C. Caudal nucleus (p. 83)

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12
Q 
Which of the following is not a circumventricular organ?
A. Area postrema
B. Subfornical organ
C. Subcommissural organ
D. Pineal gland
E. Adenohypophysis
A

E. Adenohypophysis (p. 85)

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13
Q 
The following organs lack a blood-brain barrier EXCEPT
A. Mammillary bodies
B. Median eminence
C. Neurohypophysis
D. Organum vasculosum
A

A. Mammillary bodies (p. 85)

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14
Q 
Largest component of the inferior cerebellar peduncle/restiform body
A. Olivocerebellar tract
B. Dorsal spinocerebellar tract
C. Reticulocerebellar tract
D. Cuneocerebellar tract
E. Arcuatocerebellar tract
A

A. Olivocerebellar tract (p. 87)

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15
Q 
Components of the Jackson's syndrome EXCEPT
A. Contralateral hemiparesis
B. Involvement of CN VIII
C. Involvement of CN IX
D. Involvement of CN X
E. Involvement of CN XI
F. Involvement of CN XII
A

B. Involvement of CN VIII (p. 89)

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16
Q 
Components of the Tapia's syndrome EXCEPT
A. Involvement of CN IX
B. Involvement of CN X
C. Involvement of CN XI
D. Involvement of CN XII
A

C. Involvement of CN XI (p. 89)

17
Q 
This nucleus gives rise to preganglionic PSY fibers to viscera in the thorax and abdomen
A. Dorsal motor nucleus of the vagus
B. Nucleus ambiguus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

A. Dorsal motor nucleus of the vagus (p. 89)

18
Q 
This nucleus receives fibers from the vestibular nuclei; hence, excessive vestibular stimulation (e.g. motion sickness) leads to nausea and vomiting
A. Dorsal motor nucleus of the vagus
B. Nucleus ambiguus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

A. Dorsal motor nucleus of the vagus (p. 89)

19
Q 
This nucleus gives rise to special visceral efferent fibers to the branchiomeric muscles of the pharynx and larynx
A. Dorsal motor nucleus of the vagus
B. Nucleus ambiguus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

B. Nucleus ambiguus (p. 90)

20
Q 
This nucleus receives GSA fibers from the external ear, EAC, and tympanic membrane
A. Dorsal motor nucleus of the vagus
B. Nucleus ambiguus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

C. Nucleus of the spinal tract of CN V (p. 90)

21
Q 
This nucleus receives SVA fibers subserving taste from the epiglottis and GVA fibers from the pharynx, larynx, esophagus, trachea, and thoracic and abdominal viscera
A. Dorsal motor nucleus of the vagus
B. Nucleus ambiguus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

D. Nucleus solitarius (p. 90)

22
Q 
This nucleus gives rise to SVE fibers to the stylopharyngeus muscle
A. Nucleus ambiguus
B. Inferior salivatory nucleus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

A. Nucleus ambiguus (p. 91)

23
Q 
This nucleus gives rise to the lesser petrosal nerve, which subserves preganglionic SVE fibers to the otic ganglion that innervate the parotid gland
A. Nucleus ambiguus
B. Inferior salivatory nucleus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

B. Inferior salivatory nucleus (p. 91)

24
Q 
This nucleus receives SVA fibers from the posterior 1/3 of the tongue and GVA fibers from the same region as well as the tonsils and eustachian tube
A. Nucleus ambiguus
B. Inferior salivatory nucleus
C. Nucleus of the spinal tract of CN V
D. Nucleus solitarius
A

D. Nucleus solitarius (p. 91)

25
Q 
Ondine's curse or failure of automatic respiration is due to unilateral lesions involving the medullary reticular formation and which structure?
A. Nucleus solitarius
B. Dorsal motor nucleus of the vagus
C. Nucleus ambiguus
D. None of the above
A

C. Nucleus ambiguus (p. 93)

26
Q 
Effector site inducing neurogenic pulmonary edema
A. Nucleus solitarius
B. Dorsal motor nucleus of the vagus
C. Nucleus ambiguus
D. Medial medullary reticular formation
A

A. Nucleus solitarius (p. 93)

27
Q

What is the blood supply of the paramedian region of the medulla?
A. Vertebral artery and anterior spinal artery
B. Vertebral artery alone
C. PICA
D. Posterior spinal artery

A

A. Vertebral artery and anterior spinal artery (p. 94)

28
Q

What is the blood supply of the olivary region of the medulla?
A. Vertebral artery and anterior spinal artery
B. Vertebral artery alone
C. PICA
D. Posterior spinal artery

A

B. Vertebral artery alone (p. 94)

29
Q

What is the blood supply of the lateral region of the medulla?
A. Vertebral artery and anterior spinal artery
B. Vertebral artery and PICA
C. PICA and posterior spinal artery
D. Posterior spinal artery alone

A

B. Vertebral artery and PICA (p. 95)

30
Q

What is the blood supply of the dorsal region of the medulla?
A. Vertebral artery and anterior spinal artery
B. Vertebral artery and PICA
C. PICA and posterior spinal artery
D. Posterior spinal artery alone

A

C. PICA and posterior spinal artery (p. 95)

31
Q 
The substancia gelatinosa extends rostrally as what structure?*
A. Spinal trigeminal nucleus
B. Medial lemniscus
C. Spinothalamic tract
D. Dorsal column nuclei
A

A. Spinal trigeminal nucleus (p. 83)

32
Q 
Which cranial nerves contribute to the nucleus solitarius?*
A. 5, 7, 9, 10
B. 7, 9, 10
C. 7, 8, 9, 10
D. 7, 9, 10, 12
A

B. 7, 9, 10 (p. 92)

Afifi 2nd (19 decks)

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